What is the purpose of a starting relay? a. to start an electric motor b. to remove the starting winding or component from the circuit c. to protect the motor from starting overloads d. to prevent the motor from starting under heavy loads

Question

Want to see more full solutions like this?

Answer 1

Textbook Question

100%

Chapter 10, Problem 1RQ

What is the purpose of a starting relay?

a. to start an electric motor
b. to remove the starting winding or component from the circuit
c. to protect the motor from starting overloads
d. to prevent the motor from starting under heavy loads

Expert Solution & Answer

To determine

The correct option for the purpose of the starting relay.

Explanation of Solution

The given choices are,

a) to start an electric motor
b) to remove the starting winding or component from the circuit
c) to protect the motor from starting overloads
d) to prevent the motor from starting under heavy loads

The starting relay is the relay that operates on the principle of back emf. The starting relay is used with a starting winding of single phase motor. This relay control the starting winding, as the single phase motor operates a back emf is produced in the starting winding, this winding acts as the generator that produce back emf which further corresponds to the motor speed. Thus the starting relay is used to drop the starting winding as a predefined back emf is produced in the winding.

Thus, the use of starting relay is to remove the starting winding or component from the circuit.

Thus, the correct option is (b)

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Students have asked these similar questions

The evaporator of a vapor compression refrigeration cycle utilizing R-123 as the refrigerant isbeing used to chill water. The evaporator is a shell and tube heat exchanger with the water flowingthrough the tubes. The water enters the heat exchanger at a temperature of 54°F. The approachtemperature difference of the evaporator is 3°R. The evaporating pressure of the refrigeration cycleis 4.8 psia and the condensing pressure is 75 psia. The refrigerant is flowing through the cycle witha flow rate of 18,000 lbm/hr. The R-123 leaves the evaporator as a saturated vapor and leaves thecondenser as a saturated liquid. Determine the following:a. The outlet temperature of the chilled waterb. The volumetric flow rate of the chilled water (gpm)c. The UA product of the evaporator (Btu/h-°F)d. The heat transfer rate between the refrigerant and the water (tons)

The blade support of a hacksaw is subject to compression when a blade is installed and tightened. What is the state of stress (total combined stress) at A in MPa if the compression in the support is 1,524 N. Note: pay close attention to what is compression and what is tension and use a negative sign for the former. 100 mm 8 mm 3 mm 75 mm A 8 mm 3 mm B 50 mm

The answer is not 4.378 ft/s

Answer 2

Textbook Question

100%

Chapter 10, Problem 1RQ

What is the purpose of a starting relay?

a. to start an electric motor
b. to remove the starting winding or component from the circuit
c. to protect the motor from starting overloads
d. to prevent the motor from starting under heavy loads

Expert Solution & Answer

To determine

The correct option for the purpose of the starting relay.

Explanation of Solution

The given choices are,

a) to start an electric motor
b) to remove the starting winding or component from the circuit
c) to protect the motor from starting overloads
d) to prevent the motor from starting under heavy loads

The starting relay is the relay that operates on the principle of back emf. The starting relay is used with a starting winding of single phase motor. This relay control the starting winding, as the single phase motor operates a back emf is produced in the starting winding, this winding acts as the generator that produce back emf which further corresponds to the motor speed. Thus the starting relay is used to drop the starting winding as a predefined back emf is produced in the winding.

Thus, the use of starting relay is to remove the starting winding or component from the circuit.

Thus, the correct option is (b)

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

100%

Chapter 10, Problem 1RQ

What is the purpose of a starting relay?

a. to start an electric motor
b. to remove the starting winding or component from the circuit
c. to protect the motor from starting overloads
d. to prevent the motor from starting under heavy loads

Expert Solution & Answer

To determine

The correct option for the purpose of the starting relay.

Explanation of Solution

The given choices are,

a) to start an electric motor
b) to remove the starting winding or component from the circuit
c) to protect the motor from starting overloads
d) to prevent the motor from starting under heavy loads

The starting relay is the relay that operates on the principle of back emf. The starting relay is used with a starting winding of single phase motor. This relay control the starting winding, as the single phase motor operates a back emf is produced in the starting winding, this winding acts as the generator that produce back emf which further corresponds to the motor speed. Thus the starting relay is used to drop the starting winding as a predefined back emf is produced in the winding.

Thus, the use of starting relay is to remove the starting winding or component from the circuit.

Thus, the correct option is (b)

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

100%

Chapter 10, Problem 1RQ

What is the purpose of a starting relay?

a. to start an electric motor
b. to remove the starting winding or component from the circuit
c. to protect the motor from starting overloads
d. to prevent the motor from starting under heavy loads

Expert Solution & Answer

To determine

The correct option for the purpose of the starting relay.

Explanation of Solution

The given choices are,

a) to start an electric motor
b) to remove the starting winding or component from the circuit
c) to protect the motor from starting overloads
d) to prevent the motor from starting under heavy loads

The starting relay is the relay that operates on the principle of back emf. The starting relay is used with a starting winding of single phase motor. This relay control the starting winding, as the single phase motor operates a back emf is produced in the starting winding, this winding acts as the generator that produce back emf which further corresponds to the motor speed. Thus the starting relay is used to drop the starting winding as a predefined back emf is produced in the winding.

Thus, the use of starting relay is to remove the starting winding or component from the circuit.

Thus, the correct option is (b)

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

100%

Answer 6

Textbook Question

100%

Answer 7

Expert Solution & Answer

To determine

The correct option for the purpose of the starting relay.

Explanation of Solution

The given choices are,

a) to start an electric motor
b) to remove the starting winding or component from the circuit
c) to protect the motor from starting overloads
d) to prevent the motor from starting under heavy loads

The starting relay is the relay that operates on the principle of back emf. The starting relay is used with a starting winding of single phase motor. This relay control the starting winding, as the single phase motor operates a back emf is produced in the starting winding, this winding acts as the generator that produce back emf which further corresponds to the motor speed. Thus the starting relay is used to drop the starting winding as a predefined back emf is produced in the winding.

Thus, the use of starting relay is to remove the starting winding or component from the circuit.

Thus, the correct option is (b)

Answer 8

Expert Solution & Answer

To determine

The correct option for the purpose of the starting relay.

Explanation of Solution

The given choices are,

a) to start an electric motor
b) to remove the starting winding or component from the circuit
c) to protect the motor from starting overloads
d) to prevent the motor from starting under heavy loads

The starting relay is the relay that operates on the principle of back emf. The starting relay is used with a starting winding of single phase motor. This relay control the starting winding, as the single phase motor operates a back emf is produced in the starting winding, this winding acts as the generator that produce back emf which further corresponds to the motor speed. Thus the starting relay is used to drop the starting winding as a predefined back emf is produced in the winding.

Thus, the use of starting relay is to remove the starting winding or component from the circuit.

Thus, the correct option is (b)

Answer 9

Expert Solution & Answer

Answer 10

Expert Solution & Answer

Answer 11

To determine

The correct option for the purpose of the starting relay.

Answer 12

Explanation of Solution

The given choices are,

a) to start an electric motor
b) to remove the starting winding or component from the circuit
c) to protect the motor from starting overloads
d) to prevent the motor from starting under heavy loads

The starting relay is the relay that operates on the principle of back emf. The starting relay is used with a starting winding of single phase motor. This relay control the starting winding, as the single phase motor operates a back emf is produced in the starting winding, this winding acts as the generator that produce back emf which further corresponds to the motor speed. Thus the starting relay is used to drop the starting winding as a predefined back emf is produced in the winding.

Thus, the use of starting relay is to remove the starting winding or component from the circuit.

Thus, the correct option is (b)

Answer 13

Ch. 10 - What is the purpose of a starting relay? to start...Ch. 10 - Prob. 2RQ Ch. 10 - Prob. 12RQ

What is the purpose of a starting relay? a. to start an electric motor b. to remove the starting winding or component from the circuit c. to protect the motor from starting overloads d. to prevent the motor from starting under heavy loads

Concept explainers

Videos

Explanation of Solution

Want to see more full solutions like this?

Chapter 10 Solutions